OOTB join of relational dataSPD is just a front end for ASP.NET page edits. You should be able to package the page into a WSP and deploy it as a module if you really want to make it a deployable solution. I would definitely give it a try.

Feb26

comment

Dynamic filter in list view -> Changing the operatorSort of, using REST is possible. Though I wish there would be an easier way of doing this. I've been trying to work with URL querystring manipulation, to add the field twice in the querystring with seperate values instead of the ;.